CN211386951U

CN211386951U - Turning tool for machining door stopper

Info

Publication number: CN211386951U
Application number: CN201922192146.1U
Authority: CN
Inventors: 吴利元; 易晨辉
Original assignee: Dongguan Jixin Hardware Technology Co ltd
Current assignee: Dongguan Jixin Hardware Technology Co ltd
Priority date: 2019-12-07
Filing date: 2019-12-07
Publication date: 2020-09-01
Anticipated expiration: 2029-12-07

Abstract

The utility model discloses a lathe tool for processing a door stopper, which has the technical scheme that the lathe tool comprises a tool handle and a blade body, wherein the blade body comprises a cutting part and a fixed part, the tool handle is provided with a flaring groove for installing the blade body, the fixed part is fixed on the flaring groove, the cutting part protrudes out of the flaring groove, and a fixed component for fixing the blade body is arranged between the flaring groove and the fixed part; the cutting part comprises a first cutting surface for cutting the first machining section, a second cutting surface for cutting the second machining section and a third cutting surface for cutting the third machining section, the first cutting surface, the second cutting surface and the third cutting surface are sequentially connected, and a fillet cutting surface is further arranged on one side, away from the second cutting surface, of the first cutting surface. The technology has the advantage of being capable of cutting the first machining section, the second machining section and the third machining section at one time, cutting steps are reduced, and working efficiency is improved.

Description

Turning tool for machining door stopper

Technical Field

The utility model belongs to the technical field of the lathe tool technique and specifically relates to it relates to a lathe tool for processing door stopper.

Background

A lathe is a machine tool for turning a rotating workpiece mainly with a turning tool, which is a tool for turning having one cutting portion.

When a workpiece having multiple machining sections is machined, as shown in fig. 1, for example, a door stopper 1 is provided, where the door stopper 1 includes a first machining section 11, a second machining section 12, and a third machining section 13 connected in sequence, the first machining section 11 and the second machining section 12 are both disposed in a cylindrical shape, a radius of the first machining section 11 is smaller than a radius of the second machining section 12, the third machining section 13 is disposed in a frustum shape, and a radius of the third machining section 13 is gradually reduced from one end of the second machining section 12 to a direction away from the second machining section 12. In the cutting process, the lathe tool is inconsistent with the surface of the door stopper 1, the door stopper 1 is driven to rotate through the lathe, the cutting of the door stopper 1 is realized, in the cutting process, the lathe controls the horizontal movement of the lathe tool, and the lathe tool is controlled to be inconsistent with the depth of the door stopper 1, so that the effect of processing the door stopper 1 into multiple sections is achieved.

However, in practical application, when cutting is performed, the lathe drives the turning tool to move horizontally, in the moving process, different machining sections are cut by continuously changing the depth of the turning tool abutting against the suction head, a special turning tool is not used for cutting the first machining section 11, the second machining section 12 and the third machining section 13 of the door stopper 1 at one time, the cutting step is complicated, and the working efficiency is affected.

SUMMERY OF THE UTILITY MODEL

The utility model is not enough to prior art, an object of the utility model is to provide a lathe tool for processing door stopper has the advantage that can carry out the disposable cutting to first processing section, second processing section and third processing section, has reduced the cutting step, has improved work efficiency.

The utility model discloses a technical scheme realize like this: a turning tool for machining a door stopper comprises a tool handle and a blade body, wherein the blade body comprises a cutting part and a fixing part, the tool handle is provided with a flaring groove for mounting the blade body, the fixing part is fixed in the flaring groove, the cutting part protrudes out of the flaring groove, and a fixing assembly for fixing the blade body is arranged between the flaring groove and the fixing part;

the cutting part comprises a first cutting surface for cutting the first machining section, a second cutting surface for cutting the second machining section and a third cutting surface for cutting the third machining section, the first cutting surface, the second cutting surface and the third cutting surface are sequentially connected, and a fillet cutting surface is further arranged on one side, away from the second cutting surface, of the first cutting surface.

By adopting the technical scheme, the first cutting surface, the second cutting surface and the third cutting surface are additionally arranged on the cutting part, so that the part to be cut is cut at one time, the step of moving and cutting by the cutter is omitted, different machining sections are cut without continuously changing the depth of the interference suction head of the turning tool, and the machining of a workpiece is facilitated; in addition, the workpiece is cut by additionally arranging the fillet cutting surface, so that the part of the workpiece to be cut forms a fillet, and the phenomenon that the workpiece which is just cut is too sharp and hurts people is avoided.

As a further improvement of the present invention, the fillet cutting face and the first cutting face are provided with a chamfer therebetween, and a central angle of the chamfer is 92 °.

Through adopting foretell technical scheme, add the chamfer between fillet cutting face and the first cutting face to increase the structural strength between fillet cutting face and the first cutting face, avoid the in-process cutting portion of cutting to receive the collision and fracture.

As a further improvement, the fixing component comprises a screw hole and a screw thread which are arranged on the flaring groove, the screw hole and the screw thread are connected with the bolt of the screw hole, and the blade body is provided with a through hole for the bolt to wear.

Through adopting foretell technical scheme, the fixed mode of bolt makes the blade body can fix on the handle of a knife firmly for the in-process of cutting, the blade body is difficult to take place to become flexible.

As a further improvement of the utility model, the bolt is a hexagon socket head cap screw.

Through adopting foretell technical scheme, hexagon socket head cap screw's setting is convenient for fasten and is dismantled the blade body, and the in-process of dismouting is difficult for the slip angle.

As a further improvement, the side wall of the fixing portion is provided with a counter bore for accommodating the nut of the bolt.

By adopting the technical scheme, the counter bores are formed so that the screw caps of the bolts can be accommodated in the counter bores, and the flatness of the surface of the blade body is ensured.

As a further improvement, the flaring groove includes that the end is held to the big mouth and the osculum, the end that the end is held to the big mouth of flaring groove is located the handle of a knife, the fixed part peg graft cooperate in the flaring groove, just the lateral wall of fixed part contradict in the cell wall in flaring groove.

Through adopting foretell technical scheme, the lateral wall of fixed part is contradicted with the cell wall in flaring groove to make the in-process of cutting, the blade body is difficult to take place to rock, and the cutting is more stable.

To sum up, the utility model discloses following beneficial effect has:

1. the first machining section, the second machining section and the third machining section are respectively subjected to one-time cutting by additionally arranging the first cutting surface, the second cutting surface, the third cutting surface and the fourth cutting surface, so that the cutting steps are reduced, and the working efficiency is improved;

2. add the chamfer between fillet cutting face and the first cutting face to increase the structural strength between fillet cutting face and the first cutting face, avoid the in-process cutting portion of cutting to receive the collision and fracture.

Drawings

FIG. 1 is a schematic view of the structure of a door stopper;

fig. 2 is a schematic overall structure diagram of a first embodiment of the present invention;

FIG. 3 is a schematic view of an assembly relationship between a blade body and a tool shank according to a first embodiment of the present invention;

fig. 4 is a front view of a blade body according to a first embodiment of the present invention;

fig. 5 is a schematic view of an assembly relationship between the blade body and the tool holder in the second embodiment of the present invention.

In the figure: 1. a door stopper; 11. a first processing section; 12. a second processing section; 13. a third processing section; 2. a knife handle; 21. a flared groove; 211. a first groove surface; 212. a second groove surface; 3. a blade body; 31. a cutting portion; 311. a first cutting surface; 312. a second cutting face; 313. a third cutting face; 314. a fillet cutting face; 32. a fixed part; 321. a first abutting surface; 322. a second interference surface; 41. a screw hole; 42. a bolt; 43. perforating; 44. a counter bore; 5. and (4) elastic bulges.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

a turning tool for machining a door stopper is applied to machining of the door stopper 1 as shown in figure 1. The door stopper 1 comprises a first machining section 11, a second machining section 12 and a third machining section 13 which are connected in sequence, the first machining section 11 and the second machining section 12 are arranged in a cylindrical shape, the length of the first machining section 11 is larger than that of the second machining section, the radius of the first machining section 11 is smaller than that of the second machining section 12, the third machining section 13 is arranged in a frustum shape, and the radius of the third machining section 13 is gradually reduced from one end of the second machining section 12 to the direction far away from the second machining section 12.

As shown in fig. 2 and 3, the turning tool includes a blade body 3 and a holder 2 for mounting the fixed blade body 3, and the holder 2 is provided in a rectangular parallelepiped shape. In this embodiment, the holder 2 and the blade body 3 are made of cemented carbide.

Specifically, the blade body 3 includes a cutting portion 31 for cutting a workpiece and a fixing portion 32 for fixing the blade body 3 on the holder 2, the cross section of the fixing portion 32 is a trapezoid structure, the cutting portion 31 is fixed on the lower bottom of the fixing portion 32, and in this embodiment, the cutting portion 31 and the fixing portion 32 are integrally formed. One end of the cutter handle 2 is provided with a flaring groove 21 for installing the blade body 3, the fixing part 32 of the blade body 3 is in plug-in fit with the flaring groove 21, and the cutting part 31 protrudes out of the flaring groove 21. In this embodiment, the flaring groove 21 penetrates through the side wall of the tool shank 2, wherein the flaring groove 21 comprises a large opening end and a small opening end, and the large opening end of the flaring groove 21 is located at the end part of the tool shank 2.

Specifically, as shown in fig. 3 and 4, the groove walls on both sides of the flared groove 21 each include a first groove surface 211 and a second groove surface 212, the second groove surface 212 is folded toward the flared groove 21, and an angle formed between the first groove surface 211 and the second groove surface 212 is in a range of 90 ° to 135 °. The two side edges of the fixing portion 32 are respectively provided with a first contact surface 321 and a second contact surface 322, and when the fixing portion 32 is inserted into the flared slot 21, the first contact surface 321 and the second contact surface 322 are respectively and correspondingly contacted with the first slot surface 211 and the second slot surface 212. Meanwhile, magnets which are mutually attracted are embedded between the first interference surface 321 and the first groove surface 211 as well as between the second interference surface 322 and the second groove surface 212, so that after the fixing part 32 is inserted into the flaring groove 21, the blade body 3 and the cutter handle 2 are preliminarily fixed, and the blade body 3 is fixed through the fixing component.

Further, as shown in fig. 3 and 4, a fixing member for fixing the blade body 3 is provided between the flared groove 21 and the fixing portion 32. Specifically, the fixing assembly comprises a screw hole 41 formed in the groove wall of the flaring groove 21 and a bolt 42 in threaded connection with the screw hole 41, a through hole 43 for the bolt 42 to penetrate through is formed in the blade body 3, the bolt 42 penetrates through the through hole 43 and then is in threaded connection with the screw hole 41, and the blade body 3 can be fixed on the tool holder 2 by screwing the bolt 42. In this embodiment, the bolt 42 is a hexagon bolt 42, which prevents a slip angle from occurring between the bolt 42 and the tool during the assembling and disassembling process. In addition, the side wall of the fixing portion 32 is formed with a counter bore 44 for receiving a nut of the bolt 42.

Specifically, as shown in fig. 3 and 4, the cutting portion 31 includes a first cutting surface 311, a second cutting surface 312, a third cutting surface 313 and a radiused cutting surface 314, which are connected in sequence, wherein the radiused cutting surface 314, the first cutting surface 311, the second cutting surface 312 and the third cutting surface 313 are connected in sequence, and the first cutting surface 311 is used for cutting the first machined segment 11, the second cutting surface 312 is used for cutting the second machined segment 12, and the third cutting surface 313 is used for cutting the third machined segment 13, in this embodiment, the second cutting surface 312 is connected between the first cutting surface 311 and the third cutting surface 313 and forms a concave portion, the cross section of the second cutting surface 312 is a minor arc, the central angle of the minor arc ranges from 130 ° to 135 °, in this embodiment, the central angle of the minor arc is 134 °, so that after the workpiece is cut, the second machined segment 12 protrudes from the first machined segment 11 and the third machined segment 13, and the corners of the second processing section 12 are in arc transition. In addition, a chamfer is arranged between the corner cutting surface and the first cutting surface 311 to increase the structural strength between the fillet cutting surface 314 and the first cutting surface 311, and the cutting part 31 is prevented from being broken due to collision in the cutting process. In this embodiment, the central angle of the chamfer is 92 °. In addition, the third cutting surface 313 is obliquely arranged, and an angle formed between the third cutting surface 313 and the first abutting surface 321 is 76 °, so that the third machined section 13 is cut into a frustum structure during the process of rotating the workpiece driven by the lathe.

The overall working process is as follows: before the cutting process, a worker can insert the fixing part 32 of the blade body 3 into the flaring groove 21 so that the screw hole 41 is aligned with the through hole 43, the bolt 42 passes through the through hole 43 and then is in threaded connection with the screw hole 41, and the bolt 42 is tightened so that the blade body 3 is stably fixed on the tool holder 2, and at the moment, the cutting part 31 of the blade body 3 protrudes out of the flaring groove 21 so that the cutting part 31 of the blade body 3 cuts a workpiece; the first cutting surface 311, the second cutting surface 312 and the third cutting surface 313 are additionally arranged on the cutting part 31, so that the part needing to be cut is cut at one time, the step of moving and cutting by a cutter is omitted, different machining sections are cut without continuously changing the depth of the lathe tool abutting against the suction head, and the machining of a workpiece is facilitated.

Example two: as shown in fig. 5, the difference between the first embodiment and the second embodiment is that an elastic protrusion 5 is added to a wall of the flaring slot 21, a concave hole (not shown in the figure) for the elastic protrusion 5 to insert into is added to a side wall of the blade body 3, and when the fixing portion 32 is inserted into the flaring slot 21, the elastic protrusion 5 and the concave hole are inserted and matched to preliminarily fix the blade body 3 on the handle 2, so that the blade body 3 can be fixed by a worker through a bolt 42.

The above embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the present invention.

Claims

1. The utility model provides a lathe tool for processing door stopper, includes handle of a knife (2) and blade body (3), its characterized in that: the blade body (3) comprises a cutting part (31) and a fixing part (32), the cutter handle (2) is provided with a flaring groove (21) for mounting the blade body (3), the fixing part (32) is fixed on the flaring groove (21), the cutting part (31) protrudes out of the flaring groove (21), and a fixing component for fixing the blade body (3) is arranged between the flaring groove (21) and the fixing part (32);

the cutting portion (31) comprises a first cutting surface (311) used for cutting the first machining section (11), a second cutting surface (312) used for cutting the second machining section (12) and a third cutting surface (313) used for cutting the third machining section (13), the first cutting surface (311), the second cutting surface (312) and the third cutting surface (313) are sequentially connected, and a fillet cutting surface (314) is further arranged on one side, away from the second cutting surface (312), of the first cutting surface (311).

2. The turning tool for machining the door stopper as claimed in claim 1, wherein: a chamfer is arranged between the fillet cutting surface (314) and the first cutting surface (311), and the central angle of the chamfer is 92 degrees.

3. The turning tool for machining the door stopper as claimed in claim 1, wherein: the fixing assembly comprises a screw hole (41) formed in the flaring groove (21) and a bolt (42) in threaded connection with the screw hole (41), and a through hole (43) for the bolt (42) to penetrate through is formed in the blade body (3).

4. The turning tool for machining the door stopper as claimed in claim 3, wherein: the bolt (42) is an inner hexagon bolt (42).

5. The turning tool for machining the door stopper as claimed in claim 4, wherein: the side wall of the fixing part (32) is provided with a counter bore (44) for accommodating a nut of the bolt (42).

6. The turning tool for machining the door stopper as claimed in claim 1, wherein: the flaring groove (21) comprises a large opening end and a small opening end, the large opening end of the flaring groove (21) is located at the end part of the cutter handle (2), the fixing part (32) is in plug-in fit with the flaring groove (21), and the side wall of the fixing part (32) is abutted against the groove wall of the flaring groove (21).